BMW F20 F21 F30 F31 F32 Rear Body Control Unit Module REM 6809052

BMW F20 F21 F30 F31 F32 Rear Body Control Unit Module REM is an original electronic control module designed for installation in the rear section of BMW F-series vehicles. This specialized controller from the Electronic control modules and controllers category is responsible for the precise management of selected body functions, ensuring stable operation of comfort and safety systems. Thanks to its factory origin, it serves as a coherent element of the vehicle's electrical architecture.

Specifications and technical data

• SKU: 6809052
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6809052
• Substitutable numbers: 6809052, 61356809052
• Location on the vehicle: Rear
• Part type: Engine Control Unit (ECU)
• Category: ECUs & Computer Modules

Purpose and function of the REM module

The REM module in BMW F20, F21, F30, F31, and F32 models acts as a rear body controller, integrated into the vehicle's electronic network. It is responsible for handling selected functions located at the rear of the car, working in conjunction with other controllers in the vehicle. The use of a dedicated module allows for consistent communication within the data bus and reduces the risk of errors resulting from incorrect part selection.

Compatibility with the BMW F-series platform

The BMW F20 F21 F30 F31 F32 Rear Body Control Unit Module REM has been designed with the F-series electrical architecture in mind, which translates into proper matching of connectors, control logic, and software. In practice, this means:

• compatibility with the electrical installation in the rear part of the body,
• proper cooperation with the vehicle's central controllers,
• the ability to integrate with factory comfort and safety functions.

Thanks to this, the module can be used both for post-accident repairs and for troubleshooting issues related to the vehicle's rear electronics.

Placement and installation aspects

The REM controller is intended for installation in the rear part of the car, which shortens the length of the electrical harnesses leading to the supported components and improves the reliability of the entire system. Such a location also facilitates diagnostics and potential replacement during service. Proper placement of the module minimizes interference in communication with other controllers and promotes stable system operation.

Product characteristics and service application

The offered module belongs to the Electronic control modules and controllers group, which means it is a component that directly affects the operation of the vehicle's electronic systems. It can be used as a replacement part for:

• clearing errors related to rear body electronics,
• repairs after flooding or mechanical damage to the original controller,
• restoring full functionality of comfort systems in the rear zone of the vehicle.

Due to its factory origin, the module maintains proper operating parameters and is prepared for integration with the BMW diagnostic system after appropriate configuration in the vehicle.

Support with selection and knowledge expansion

If you are planning a comprehensive repair or upgrade of the body electronics area in your BMW and need other components from the same group, such as light controllers, comfort modules, or body management units, check out the available parts in the BMW electronic control modules and controllers category.

To better understand how the REM module works with other controllers in vehicles of this brand and to learn practical tips on using salvaged parts, it is worth checking out the guide Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models using salvaged parts?, which discusses, among other things, issues related to body modules and their diagnostics.